CN109711693A - A kind of evaluation method based on virtual reality human-computer interaction system - Google Patents
A kind of evaluation method based on virtual reality human-computer interaction system Download PDFInfo
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Abstract
The present invention provides a kind of evaluation methods based on virtual reality human-computer interaction system, comprising: S1: according to the property and feature of tested virtual reality human-computer interaction system, determining critical evaluation index；S2: the subjective assessment system of virtual reality human-computer interaction system, including virtual reality human-computer interaction experiencing system, subjective assessment data collection system, data processing unit are built；S3: subjective evaluation and test experiment is carried out, the quantization score matrix X of critical evaluation index is obtainedij, j-th of evaluation and test person is represented to XiThe marking result of parameter；S4: the weight coefficient of critical evaluation index is determined；S5: the average mark of the critical evaluation index of virtual reality human-computer interaction system is calculated；S6: the user experience quality score value QoE of virtual reality human-computer interaction system is calculated.
Description
Technical field
The present invention relates to technical field of virtual reality more particularly to a kind of evaluations based on virtual reality human-computer interaction system
Method.
Background technique
Virtual reality (Virtual Reality, VR) technology is used using the virtual environment of the present computer technology creation
Specific human-computer interaction device can be used in family and device is interacted with virtual environment, generates impression on the spot in person.It immerses
Property (Immersion), interactivity (Interaction) and imagination (Imagination) are three bases of virtual reality system
Eigen, wherein interactivity and the property immersed the two features are also virtual reality and other the relevant technologies (such as three-dimensional animations, science
Visualization and traditional multi-media image technology etc.) essential distinction.These three characteristics be not it is isolated existing, be between them
Interactional, three characteristics also highlight leading role of the people in virtual system, i.e., the impression of people is in the entire system most
It is important.
In order to make experiencer obtain better interactivity and the property immersed effect, it is proposed in the market based on various hardware devices
VR interactive system, including VR body-building class man-machine interactive system: VR treadmill, VR bicycle, VR rowing machine etc.；Based on freedom degree (3
A freedom degree, 6 freedom degrees) VR man-machine interactive system: all kinds of egg chairs, rotate class experience apparatus；It is filled based on gesture identification
The VR man-machine interactive system set；VR man-machine interactive system etc. based on all kinds of wearable devices.
Currently, the man-machine interactive system wide variety of virtual reality, ununified specification and standard, in a hundred flowers blossom
Stage.Due to lacking the evaluation mechanism to these VR man-machine interactive systems, the production firm of relevant equipment and system and grind
Hair mechanism is difficult to obtain the feedback of user experience in the market, causes virtual reality human-computer interaction system and product currently on the market
Specification characterization multiplicity, both made in the market alternative Related product and system it is more, but use of the user to these products
Viscosity is very low.
Summary of the invention
In view of the defects existing in the prior art, the present invention discloses a kind of evaluation side based on virtual reality human-computer interaction system
Method, comprising:
S1: according to the property and feature of tested virtual reality human-computer interaction system, critical evaluation index is determined；
S2: the subjective assessment system of virtual reality human-computer interaction system, including virtual reality human-computer interaction experience system are built
System, subjective assessment data collection system, data processing unit；
S3: subjective evaluation and test experiment is carried out, the quantization score matrix X of critical evaluation index is obtainedij, represent j-th of evaluation and test person
To XiThe marking result of parameter；
S4: the weight coefficient of critical evaluation index is determined；
S5: the average mark of the critical evaluation index of virtual reality human-computer interaction system is calculated；
S6: the user experience quality score value QoE of virtual reality human-computer interaction system is calculated；
S7: the grade scale of virtual reality human-computer interaction system is established；According to user experience quality effect, establish a kind of suitable
For the experience grade stage division of virtual reality human-computer interaction system, three grades is divided into according to overall look and feel experience；
S8: according to the virtual reality human-computer interaction system of the S6 user experience quality QoE score value calculated and the S7
The grade scale of system determines the hierarchical region where examining system.
Further, in the S1, critical evaluation index can select several (N as neededi), it is denoted as Xi, wherein i is to comment
The number of valence index, 1≤i≤Ni, i round numbers.
Further, in the S3, when carrying out subjective evaluation and test experiment, real user that tester will use from the set system
Middle selection, and pay attention to from all ages and classes, different sexes, different educational background user group in select, participate in subjective evaluation and test
Efficiently individual quantity be Mj。
Further, in the S4, subjectivity evaluation and test during, evaluation and test person after giving a mark to critical evaluation index,
According to its degree of attentiveness to critical evaluation index according to from being least concerned about to most concerned about being successively ranked up, according to ranking results,
According to average equipartition principle, with total score for 10, the weight reference point for each critical evaluation index that the evaluation and test person provides is obtained,
All evaluation and test persons are obtained for the weight of all critical evaluation indexs with reference to point, are referred to according to the critical evaluation that all evaluation and test persons provide
Mark weight, with reference to mean value is divided, the weight of all critical evaluation indexs is referred to reference to point weight for calculating corresponding critical evaluation index
Point mean value is normalized, and obtains the weight coefficient of critical evaluation index.
Further, determine the circular of the weight coefficient of critical evaluation index: j-th of evaluation and test person is to N number of key
Evaluation index XiAccording to from being least concerned about to most concerned about being ranked up, according to ranking results according to principle of equipartition, divide 10 lists equally
Position, i.e.,It obtains the reference of each critical evaluation index weights and divides Score (Xij), wherein Score (Xij)
It represents jth position evaluation and test person and provides critical evaluation index XiWeight with reference to point；Referred to according to the critical evaluation that all measured provide
Target weight is with reference to a point calculating critical evaluation index XiWeight with reference to dividing mean value
WhereinRepresent critical evaluation index XiWeight with reference to dividing mean value；The mean value is normalized
Processing, obtains each critical evaluation index XiWeight coefficient
Wherein λiRepresent critical evaluation index XiWeight coefficient,Represent all critical evaluation indexs
Weight reference divides the maximum value of mean value,All critical evaluation index weights are represented with reference to the minimum of point mean value
Value.
Further, in the S5, according to scoring matrix Xij, marking result is calculated using following mathematical model
Wherein XijJ-th of evaluation and test person is represented to XiThe marking of parameter is as a result, uiAll evaluation and test persons are represented to refer to key evaluation and test
Mark XiThe mean value of marking.
Further, in the S6 user experience quality score value QoE calculating: according to the weight coefficient of the S4 and the S5
Marking as a result, following formula is utilized to calculate QoE value:
The beneficial effects of the present invention are:
1, the present invention effectively fills up the blank of virtual reality human-computer interaction System Assessment Method, sets from the angle of user experience
It counts evaluation algorithms, the especially weight coefficient of critical evaluation index also to give a mark entirely from user, is truly realized from people and experiences
Angle whole system is evaluated.
2, evaluation algorithms proposed by the present invention and the device hardware of virtual reality human-computer interaction system are constituted, content is shown
It is irrelevant, the drawbacks of man-machine interactive system wide variety specification disunity has no way of evaluating is effectively prevented, it can by this method
The overall customer experience feature of accurate expression whole system, has high marketing.
3, the counterattack method for the virtual reality human-computer interaction system that the present invention creatively proposes, can effectively instruct void
The suitable application area of quasi- reality man-machine interactive system and apply crowd, subject to enter market and the selection of target customers is provided using ginseng
Examine index.This method is also very helpful to standard market, promotes the benign development of entire virtual reality industry.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the evaluation method based on virtual reality human-computer interaction system disclosed by the invention.
Specific embodiment
In being described below, for illustration and not for limitation, propose such as project equipment structure, interface, technology it
The detail of class, to understand thoroughly the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, omit to well-known device, circuit and
The detailed description of method, in case unnecessary details interferes description of the invention.
As shown in Figure 1, the present invention in implementation process the following steps are included:
1, according to the property and feature for being tested virtual reality human-computer interaction system, critical evaluation index is determined.Critical evaluation
Index can select several (N as neededi), it is denoted as Xi, wherein i is the number of evaluation index, 1≤i≤Ni, i round numbers.
2, the subjective assessment system of virtual reality human-computer interaction system, including virtual reality human-computer interaction experience system are built
System, subjective assessment data collection system, data processing unit.
3, subjective evaluation and test experiment is carried out, the quantization score matrix X of critical evaluation index is obtainedij, represent j-th of evaluation and test person couple
XiThe marking result of parameter.Wherein quantization method is carried out to critical evaluation index " to put down using what International Telecommunication Union (ITU) suggested
Equal point value of evaluation " (MOS, i.e. Mean Opinion Score) method, is divided into five levels for each single item critical evaluation index, amount
Change standard is as follows: excellent (80-100), good (60-80), in (40-60), poor (20-40), bad (0-20).Carry out subjective evaluation and test experiment
When, tester will choose from the real user that the set system uses, and pay attention to from all ages and classes, different sexes, difference
It is selected in the user group of education background, the efficiently individual quantity for participating in subjective evaluation and test is Mj。
4, the weight coefficient of critical evaluation index is determined.During subjectivity evaluation and test, evaluation and test person refers to critical evaluation
After mark is given a mark, according to its degree of attentiveness to critical evaluation index according to from being least concerned about to most concerned about being successively ranked up,
According to ranking results, each critical evaluation index that the evaluation and test person provides is obtained with total score for 10 according to average equipartition principle
Weight with reference to point, and so on, obtain all evaluation and test persons for the weight of all critical evaluation indexs with reference to point, according to all
The critical evaluation index weights that evaluation and test person provides, with reference to point mean value, will own with reference to point weight for calculating corresponding critical evaluation index
The weight of critical evaluation index is normalized with reference to a point mean value, obtains the weight coefficient of critical evaluation index.
Circular: j-th of evaluation and test person is to N number of critical evaluation index XiAccording to from least care to most concerned about progress
Sequence, according to ranking results according to principle of equipartition, divides 10 units equally, i.e.,Each key is obtained to comment
The reference of valence index weights divides Score (Xij), wherein Score (Xij) represent jth position evaluation and test person and provide critical evaluation index XiPower
Reference point again.The weight of the critical evaluation index provided according to all measured is with reference to a point calculating critical evaluation index XiWeight
With reference to dividing mean value
WhereinRepresent critical evaluation index XiWeight with reference to dividing mean value.Above-mentioned mean value is normalized
Processing, obtains each critical evaluation index XiWeight coefficient
Wherein λiRepresent critical evaluation index XiWeight coefficient,Represent all critical evaluation indexs
Weight reference divides the maximum value of mean value,All critical evaluation index weights are represented with reference to the minimum of point mean value
Value.
5, the average mark of the critical evaluation index of virtual reality human-computer interaction system is calculated.According to scoring matrix Xij, benefit
Marking result is calculated with following mathematical model
Wherein XijJ-th of evaluation and test person is represented to XiThe marking of parameter is as a result, uiAll evaluation and test persons are represented to refer to key evaluation and test
Mark XiThe mean value of marking.
6, the user experience quality score value QoE for calculating virtual reality human-computer interaction system, according to the weight coefficient of step 4 and
The marking of step 5 is as a result, calculate QoE value using following formula.
7, the grade scale of virtual reality human-computer interaction system is established.According to user experience quality effect, establish a kind of suitable
For the experience grade stage division of virtual reality human-computer interaction system, three grades is divided into according to overall look and feel experience.
8, according to the step 6 user experience quality QoE score value calculated and the virtual reality human-computer interaction system of step 7
Grade scale, determine the hierarchical region where examining system.
Effectively virtual reality human-computer interaction system can be classified by the set user experience quality evaluation method,
Effectively instruct the suitable application area of virtual reality human-computer interaction system and using crowd, subject to enter market and the choosing of target customers
Offer is provided and uses reference index.
The invention discloses a kind of user experience evaluation methods and system based on virtual reality human-computer interaction system, with reality
Now from user experience angle, virtual reality human-computer interaction systems numerous in the market is evaluated, is producer and institute
The overall feedback effect of whole system is provided, user's viscosity is improved, promotes the development of entire industry.
Reader should be understood that in the description of this specification reference term " one embodiment ", " is shown " some embodiments "
The description of example ", " specific example " or " some examples " etc. mean specific features described in conjunction with this embodiment or example, structure,
Material or feature are included at least one embodiment or example of the invention.In the present specification, above-mentioned term is shown
The statement of meaning property need not be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described
It may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this
The technical staff in field can be by the spy of different embodiments or examples described in this specification and different embodiments or examples
Sign is combined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (8)
1. a kind of evaluation method based on virtual reality human-computer interaction system characterized by comprising
S1: according to the property and feature of tested virtual reality human-computer interaction system, evaluation index is determined；
S2: the subjective assessment system of the virtual reality human-computer interaction system is built according to the property and feature, comprising: virtual
Real man-machine interaction experience system, subjective assessment data collection system and data processing unit；
S3: subjective evaluation and test experiment is carried out, the quantization score matrix X of evaluation index is obtainedij, j-th of evaluation and test person is represented to XiParameter
Marking as a result, wherein i be evaluation index number, 1≤i≤Ni, i round numbers；
S4: the weight coefficient of evaluation index is determined；
S5: the average mark of the critical evaluation index of virtual reality human-computer interaction system is calculated；
S6: the user experience quality score value QoE of virtual reality human-computer interaction system is calculated；
S7: according to user experience quality effect, the experience grade stage division of virtual reality human-computer interaction system is established；
S8: according to the virtual reality human-computer interaction system of the S6 user experience quality QoE score value calculated and the S7
Grade scale determines the hierarchical region where examining system；
S9: according to user gradation region, the device parameter of other grades is accordingly adjusted.
2. the evaluation method according to claim 1 based on virtual reality human-computer interaction system, which is characterized in that the S1
In, evaluation index includes several (Ni), it is denoted as Xi, wherein i is the number of evaluation index, 1≤i≤Ni, i round numbers.
3. the evaluation method according to claim 1 based on virtual reality human-computer interaction system, which is characterized in that the S3
In, when carrying out subjective evaluation and test experiment, tester chooses from the real user that the set system uses, the year of the tester
Age and education background difference, the efficiently individual quantity for participating in subjective evaluation and test is Mj。
4. the evaluation method according to claim 3 based on virtual reality human-computer interaction system, which is characterized in that the S4
In, during subjectivity evaluation and test, evaluation and test person presses evaluation index according to its degree of attentiveness after giving a mark to evaluation index
According to from being least concerned about to most concerned about being successively ranked up, according to ranking results, all evaluation and test persons are obtained for all evaluation indexes
Weight with reference to point, the evaluation criterion weight that is provided according to all evaluation and test persons is referred to reference to the weight for point calculating corresponding evaluation index
Divide mean value, the weight of all evaluation indexes is normalized with reference to a point mean value, obtains the weight system of evaluation index
Number.
5. the evaluation method according to claim 4 based on virtual reality human-computer interaction system, which is characterized in that determine and close
The circular of the weight coefficient of key evaluation index: j-th of evaluation and test person is to N number of critical evaluation index XiAccording to from being most not related to
The heart, according to ranking results according to principle of equipartition, divides 10 units equally, i.e., to most concerned about being ranked up
It obtains the reference of each critical evaluation index weights and divides Score (Xij), wherein Score (Xij) represent jth position evaluation and test person and provide key
Evaluation index XiWeight with reference to point；The weight of the critical evaluation index provided according to all measured calculates key with reference to point and comments
Valence index XiWeight with reference to dividing mean value:
WhereinRepresent critical evaluation index XiWeight with reference to dividing mean value；The mean value is normalized,
Obtain each critical evaluation index XiWeight coefficient:
Wherein λiRepresent critical evaluation index XiWeight coefficient,Represent all critical evaluation index weights
With reference to the maximum value for dividing mean value,All critical evaluation index weights are represented with reference to the minimum value of point mean value.
6. the evaluation method according to claim 5 based on virtual reality human-computer interaction system, which is characterized in that the S5
In, according to scoring matrix Xij, marking result is calculated using following mathematical model
Wherein XijJ-th of evaluation and test person is represented to XiThe marking of parameter is as a result, uiAll evaluation and test persons are represented to crucial evaluation metrics XiIt beats
The mean value divided.
7. the evaluation method according to claim 6 based on virtual reality human-computer interaction system, which is characterized in that the S6
The calculating of middle user experience quality score value QoE: according to the marking of the weight coefficient of the S4 and the S5 as a result, using following
Formula calculates QoE value:
8. the evaluation method according to claim 1 based on virtual reality human-computer interaction system, which is characterized in that the S9
In, the device parameter includes: the parameter type of adjustment force, logical operation, test counting.
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| CN110955333A (en) * | 2019-11-28 | 2020-04-03 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Method and system for testing comfort level of head-mounted virtual reality equipment |
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Application publication date: 20190503 |